How did the rise of discriminatory groups affect the failure of Reconstruction in South Carolina ?

A. Political candidates who publicly proclaimed their membership in the Ku Klux Klan were easily elected to office in South Carolina.

B. Threats and intimidation from groups like the Ku Klux Klan convinced many Republican voters to stay away from polls on election days.

C. The Freedmen's Bureau was removed from South Carolina due to the rise of groups like the Ku Klux Klan and the White League.

D. Groups like the Red Shirts, White League, and Ku Klux Klan were able to successfully lobby for the repeal of Reconstruction initiatives